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CVE-2026-78445— Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability

Quick assessment

Affected
Microsoft Windows Server 2012
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

这段描述来自 Microsoft 的安全公告（Security Bulletin）。为了保持专业术语的准确性，我们需要对几个关键术语进行标准翻译： Use after free：这是内存管理中的一个常见漏洞类型，标准译法为“释放后使用”或“释放后使用（UAF）”。在中文安全报告中，通常直接译为“释放后使用”。 Windows Services for NFS ONCRPC XDR Driver：这是 Windows 系统中的一个具体驱动组件。 "Services for NFS" 通常译为“NFS 服务”。 "ON

CVSS 9.8 · Critical

Affected Version Matrix 11

VendorProduct Version RangeStatus
Microsoft Windows Server 2012 6.2.9200.0< 6.2.9200.26349 affected
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0< 6.2.9200.26349 affected
Microsoft Windows Server 2012 R2 6.3.9600.0< 6.3.9600.23397 affected
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0< 6.3.9600.23397 affected
Microsoft Windows Server 2016 10.0.14393.0< 10.0.14393.9512 affected
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0< 10.0.14393.9512 affected
Microsoft Windows Server 2019 10.0.17763.0< 10.0.17763.9245 affected
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0< 10.0.17763.9245 affected
Microsoft Windows Server 2022 10.0.20348.0< 10.0.20348.5622 affected
Microsoft Windows Server 2025 10.0.26100.0< 10.0.26100.33438 affected
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0< 10.0.26100.33438 affected
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I. Basic Information for CVE-2026-78445

Vulnerability Information
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Vulnerability Title
Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Use after free in Windows Services for NFS ONCRPC XDR Driver allows an unauthorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows Server 2012 6.2.9200.0 ~ 6.2.9200.26349 -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ 6.2.9200.26349 -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ 6.3.9600.23397 -
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 ~ 6.3.9600.23397 -
Microsoft Windows Server 2016 10.0.14393.0 ~ 10.0.14393.9512 -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ 10.0.14393.9512 -
Microsoft Windows Server 2019 10.0.17763.0 ~ 10.0.17763.9245 -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ 10.0.17763.9245 -
Microsoft Windows Server 2022 10.0.20348.0 ~ 10.0.20348.5622 -
Microsoft Windows Server 2025 10.0.26100.0 ~ 10.0.26100.33438 -
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 ~ 10.0.26100.33438 -

II. Public POCs for CVE-2026-78445

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III. Intelligence Information for CVE-2026-78445

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Vendor Advisories for CVE-2026-78445 (1)

Same Patch Batch · Microsoft · 2026-09-08 · 966 CVEs total

CVE-2026-83941 9.9 CRITICAL Entra ID Elevation of Privilege Vulnerability
CVE-2026-69525 9.8 CRITICAL Remote Desktop Services Remote Code Execution Vulnerability
CVE-2026-69463 9.8 CRITICAL Windows NTFS Remote Code Execution Vulnerability
CVE-2026-73025 9.8 CRITICAL Windows iSCSI Security Feature Bypass Vulnerability
CVE-2026-73010 9.8 CRITICAL Microsoft Failover Cluster Remote Code Execution Vulnerability
CVE-2026-70296 9.8 CRITICAL Windows Imaging Component Remote Code Execution Vulnerability
CVE-2026-69819 9.8 CRITICAL RPC Runtime Library Remote Code Execution Vulnerability
CVE-2026-69715 9.8 CRITICAL Windows Direct Show Remote Code Execution Vulnerability
CVE-2026-73009 9.8 CRITICAL Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
CVE-2026-69590 9.8 CRITICAL Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-68839 9.8 CRITICAL Windows USB Mass Storage Class Driver Remote Code Execution Vulnerability
CVE-2026-69768 9.8 CRITICAL Windows RNDIS Remote Code Execution Vulnerability
CVE-2026-69491 9.8 CRITICAL Microsoft DirectMusic Remote Code Execution Vulnerability
CVE-2026-69431 9.8 CRITICAL Telnet Client Remote Code Execution Vulnerability
CVE-2026-72979 9.8 CRITICAL Windows DHCP Server Remote Code Execution Vulnerability
CVE-2026-69824 9.8 CRITICAL Microsoft Standard XPS Remote Code Execution Vulnerability
CVE-2026-69408 9.8 CRITICAL Microsoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2026-69910 9.8 CRITICAL Windows Hyper-V Remote Code Execution Vulnerability
CVE-2026-78510 9.8 CRITICAL Microsoft Word Remote Code Execution Vulnerability
CVE-2026-69586 9.8 CRITICAL Microsoft Windows PDF Remote Code Execution Vulnerability

Showing top 20 of 966 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Windows Server 2012
Same vendor: Microsoft
Same weakness: CWE-416

V. Comments for CVE-2026-78445

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